Tatsuhiko Hiroki
About
Meet Tatsuhiko Hiroki, an active VTuber working independently. Formerly with OshiLink. Gender: Female. Based in Singapore. Broadcasts in english. Also speaks japanese. Posts content to Twitch, YouTube, X (Twitter). Twitch Affiliate. Counts 1.2K followers on Twitch across their channels. Streams cover art / crafting / drawing / editing. Common descriptors: #hii_livecast, #hii_png, #hii_tape. Schedule shows 6 upcoming Twitch streams. Debuted 2022/08. Designed with designer by Hiroki, illustrator by trustyskittles & Hikari Akiduki, live2d rigger by Ril. Known to be hiroki is energetic, impatient (at games) and occasionally acts like a kusogaki (brat). Character design: Hiroki has two versions of herself, dubbed as "Reality" and "Dream" version. Lore: There are a lot of confusion on Hiroki's journey as a VTuber. Trivia: Hiroki's greeting is "Hoikigenyo! Tatsuhiko stands at 162 cm (5'4"), character age 20 (eternally). Born under sagittarius. Oshi mark: ☁️🩵. Available media: an introduction video, a dedicated lore video, a 15-image gallery. Frequently mentioned alongside wildspice, eris-lefaire. Fanbase known as Himaru. Also known as ヒーちゃん / Hii-chan, ヒヒちゃん / Hihi-chan, hitwochan (English pronounciation) by her close associates.
Character Info
Community
Hashtags
Twitch Schedule
Upcoming Week
All Scheduled Streams
Recent Activity
Introduction Video
Gallery
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Lore Video
Personality
Hiroki is energetic, impatient (at games) and occasionally acts like a kusogaki (brat). She also has a tendency to give up on things when things aren't going well and will become very petty if things don't go her way. She's also very forgetful, hence the amnesiac lore.
Appearance
Hiroki has two versions of herself, dubbed as "Reality" and "Dream" version. Both models have the main colour theme of Blue, White and Grey. She also retains her twintails in both versions, although it is hard to discern on the Reality version.
She has also recently revealed her 3D model on the 19th of October 2025.
History
There are a lot of confusion on Hiroki's journey as a VTuber. As far as she remembers, she started streaming very casually from 2019.
Background
In August 2022, Hiroki tried streaming on Youtube with her own self-made model, but only her friends were there and slowly, she lost the motivation to stream. It was not until September 2022, she created an account on Twitch to support her friends, and felt the spark to stream again.
Hiroki has had multiple debuts for various reasons, but she has mentioned that she mainly only remembers her Twitch Affiliate date and 2.0 Model Debut. It is unknown how many debuts there were and the reasons for them.
Official Lore Video
On 13 September, Hiroki uploaded her official lore video on her 2nd account. She did all the script writing, voice acting, and even the editing all on her own.
3D Debut
On 19 October, Hiroki did a 3D stream, revealing her 3D model and various outfits.
Mascot and fans
Hiroki refers to her fans as Himaru (ヒ丸). Hi(ヒ) taken from her name Hiroki, Maru (丸) which translates to circle, thus making it Hiroki's Circle of fans. Himarus used to be represented by a water droplet (her fans call it slime) until the revamp in 2024, where Hiroki reveals Himaru's 3.0 design as a white fluffy bear.
Likes and dislikes
- Hiroki mentioned multiple times that she thinks twin tails is the best and cutest hairstyle, but she generally likes anything cute.
- Despite having mostly blue as her main colour scheme, Hiroki's favourite colour is Orange. She chides her Himarus when they forget this fact.
- Hiroki vehemently dislike pineapples on pizza and often tells her viewers to relearn their tastebuds from their mother's womb.
Miscellaneous
- Hiroki's greeting is "Hoikigenyo! Good morning, Good Afternoon, Good Evening, whichever timezone you are in! I hope you guys have eaten~" (She combined her most used sound "Hoi" with "Gokigenyou" (hello/goodbye in Japanese) and she has a tendency to not eat, so she makes sure that at least Himarus ate.)
- Although she has two adorable models, Hiroki aspires to be a cool Vtuber.
- Hiroki often speaks in broken Japanese and wants to get better, but has no motivation to learn.
- Hiroki is a streamer from Singapore, but knows very little about her own country.
- Hiroki has two cats named Kuro/黒 (black, male, older) and Yuuga/優雅 (brown, female, younger) whom she has a love hate relationship with.
- Hiroki also loves to do art on top of singing. She rates her skills as low and is a slow artist.
- Hiroki used to stream for three years with an integrated graphics card until her throne gift for a new PC got funded.
- A Himaru also kindly sent her a new set of motherboard.
- She once laughed so hard that she sweats through her skirt, leaving a pool of sweat on a public train seat.
- Her Original song lyrics, キーホールアリア(Keyhole Aria), was written by herself and produced by another_shiro.
- Hiroki wears glasses in real life.
- Hiroki sleeps on a sofa bed - that was funded by Himarus.
- Hiroki's breast barely fits within her own hands and flows over her hands.
Frequently mentioned
More VTubers from Singapore
More Info
Reality (現実) Version
Her Reality version is her 2.0 Model that debuted on 2024/04/14. Her hair looks slightly shorter and has a greener hue. Many have noted that her hairstyle reminds them of Sucrose from Genshin Impact. Her hair retains the twin tails, but it is difficult to see as it is tucked under her beret. Hiroki's eyes are more blue with green tint on this model. She has a blue beret with a small white Himaru (old design) on the right and a cross on the left. She wears a light blue long sleeved blouse with a black ribbon and checkered skirt that has a chain with Himaru (old design) charms on it. She also wears a gold rimmed round glasses and a white cape which can be taken off. Her socks are asymmetrical and she has a thigh pouch which contains some secret potions. Her shoes are winter boots with soft fluffy rims. Hiroki uses this model for most of her gaming streams.
The model was designed by Hiroki, herself. Art was drawn by trustyskittles and Rig done by VixenVermilion.
Dream (夢) Version
Dream version is Hiroki's 1.0 Model that debuted on 2023/01/03. Her blue hair is tied up in twin tails with wavy ends. Her eyes are a mixture of blue and purple and she has small canine teeth on this model. She wears a white button black dress with a white tie decorated with dark grey crosses at the bottom. There are white belts strapped around her chest and mid torso, two pouches and a test tube of sorts. Over these, Hiroki wears an open jacket where the inner part is blue while the outside is mainly white with decorations in black. Her socks are more asymmetric in this model, with one sock being of crew height while the other is thigh high. She also has the thigh pouch on her leg with the shorter sock. Her shoes are a pair of black sneakers with white vamp. Hiroki uses this model for Karaoke streams or during Events.
The model was created by Hikari Akiduki. Hiroki mentioned that she bought this premade model within a few hours of viewing it.
3D Models
Hiroki debuted 4 outfits for her 3D model on 2025/10/19, with one of the main outfit having an alternate colour. Her main 3D model is titled Black Rosemary, because the outfit was bought from 39studioJP on booth. The alternate White Rosemary was also bought from the same creator. Hiroki commissioned jessair for the hair bangs, bought the curl twintails from Surcen and worked on the texture herself . Her other outfits that were shown are the KPOP idol outfit from hevano/hevano, the Tactical outfit from YUHEI, and the Sweet Maid outfit from もねこ(ユズリ). The skin texture is from しらとりこはね.
On 2025/10/26, Hiroki revealed her Bunny outfit during a Merry Bunny Garden stream . The outfit was bought from F/A Industries. Hiroki uses this model whenever she is trying to sound sexy.
During her annual 12hr Halloween stream on 2025/10/31 , Hiroki wears a Halloween themed dress along with a witch hat. The dress was bought from Surcen while the hat was from VRoid and textured by Hiroki, herself.
Thus, Hiroki now has 6 outfits with one alternate colour scheme.
2022
In December, Hiroki reached Twitch Affiliate status.
2024
In January, she released her first original song titled キーホールアリア, produced by another_shiro, on 2024/01/26. The song is also available on Apple music store and Spotify. The MV has reached 1,000 views and listened 4,000+ times on Spotify.
On 14 April, she joined the startup VTuber agency OshiLink as part of the self-named group Comets, along with WildSpice (joined in March 2024) and Eris Lefaire (who joined in May 2024).
On 1 September, she reached 1,000 YouTube subscribers.
On 25 November, her fan mascot received a revamp from looking like a water droplet (her fans say slime) to a white fluffy bear carrying the same kind of pouch on her Reality and Dream models.
On 9 December, her Youtube Membership opened.
2025
On 10 March, Hiroki departed from OshiLink, due to the agency's indefinite hiatus. She has expressed that it was difficult for her while she was part of the agency due to the lack of basic support. She mentions that she will not be graduating, but simply reverting to before joining the agency as an independent VTuber.
2nd Channel
On March, Hiroki opened a 2nd channel for her Japanese content, however, she has not uploaded much on it.
1,000 Twitch Followers Milestone
On 13 May, her Twitch channel follower count hit 1,000. She did a 12hr stream in celebration.
Cookie Run Model
Hiroki drew and rigged her own Cookie Run model on 17 May.
2,000 Youtube Subscribers Milestone
On 27 May, Hiroki's Youtube channel hit 2,000 subscribers.
evenlyODD
On 21 April, Hiroki reveals the team she formed - evenlyODD . It is a team of streamers and gamers that just hang out to game together. The team started with 10 members and are currently at 6 members. Their first collab stream was on 9 May, playing Jackbox Party Games.
Twitter/X suspension
On 15 September, Hiroki suddenly announces that her main Twitter/X account had been suspended. She first got an action blocked for trying to follow an art account, and seconds later, her account got suspended for violating the X rules. The suspension was unwarranted and has not be lifted as of now.
On 19 September, she began to use her alternate account (hi2_chan), and am currently active on it.
Daily shorts upload
From 4 October onwards, Hiroki started uploading shorts daily.
3,000 Youtube Subscribers Milestone
On 30 October, Hiroki's Youtube channel hit 3,000 subscribers.
4,000 Youtube Subscribers Milestone
30 November, Hiroki's Youtube channel hit 4,000 subscribers. She tried doing a 100 songs Karaoke stream, but failed after 40 songs.
Stream content
Hiroki mainly streams Visual Novels, collaborative games, and anything visually pleasing to her.
She likes to do Karaoke, and does a weekly Tune in Tuesday stream for it.
Currently, she is also doing a weekly Japanese Study stream with her friend, Ashe.
She likes to mention that her streams are PG13 and family friendly, but her viewers mentions otherwise since Hiroki swears a lot during gaming sessions. She also likes to mention that she is very seiso, but it is questionable.
Comets
Comets is the group name for the adopted talents in OshiLink. This includes WildSpice, Hiroki and Eris. They have done cooperative games such as Chained Together and Phasmophobia. They have also done a Christmas cover of Jingle Bell Rock as a trio. Spice and Hiroki have done a duet for Hope is the thing with feathers, a song from the popular Hoyoverse game - Honkai Star Rail.
evenlyODD
evenlyODD is a team formed by Hiroki. She is very particular in how the team's name is characterised, evenly in lowercaps and ODD in uppercaps.
The team currently consists of Hiroki, MoonRei, Fuzion of Flames, Crabula, Boi, Scylla Lavenrose. Of which, Boi is the only non-Vtuber.
Previous members are Arslan the Jester, Kitsune Yuki, TedStyx, Coda is gone.
Media
- Hiroki Ch. 竜彦広木 - Main YouTube channel
- Hiroki Ch. 竜彦広木 - 2nd YouTube channel
- hi2chan - Twitch channel
- hi2chan - Twitter/X account [Former]
- hi2_chan - Twitter/X account [Current]
- hi2chan.bsky.social - Bluesky account [Unused]
Statistics
- hi2chan - TwitchTracker stats
- hi2chan - SullyGnome Twitch stats
- hi2chan - Social Blade Twitch stats
- Hiroki Ch. 竜彦広木 - Social Blade YouTube stats
- Hiroki Ch. 竜彦広木 - Playboard YouTube stats