Chaika's YouTube channel was created on 25 May 2018 and his Twitter account also created in same month. His first tweet was made on 3 June 2018.
He made his YouTube debut on 6 June 2018 and posted his self introduction video on Twitter on the same day.
His previous name is "Chaika Brine", a rather dense 'onee'. He previously owned a bar, as a 'Mama', in a country in another world. Three years ago, he was transported to the present day and is now the owner of a certain coffee shop. He has a keen sense of intuition and is very clever.
On 23 June, Chaika reached 10,000 subscribers on his YouTube channel.
On 2 September, Chaika reached 20,000 subscribers on his YouTube channel.
On 1 December, Chaika reached 30,000 subscribers on his YouTube channel.
On 13 December, Ichikara Inc. announced that NIJISANJI Gamers and NIJISANJI SEEDs would merge with NIJISANJI by the end of the month. As a result, Chaika is now officially affiliated with NIJISANJI.
On 25 January, Chaika reached 40,000 subscribers on his YouTube channel.
On 3 March, Chaika reached 50,000 subscribers on his YouTube channel.
On 21 June, Chaika debuted the 2.0 brushup of his Live2D model.
On 28 September, Chaika reached 100,000 subscribers on his YouTube channel.
On 25 March, Chaika reached 150,000 subscribers on his YouTube channel.
On 22 June, Chaika announced he will hold his official 3D model YouTube debut on 3 July. According to plan, Chaika unveiled his official 3D model on YouTube on 3 July.
On 19 August, Chaika reached 200,000 subscribers on his YouTube channel.
On 12 December, Chaika reached 250,000 subscribers on his YouTube channel.
On 1 July, Chaika reached 300,000 subscribers on his YouTube channel.
On 2 February, Chaika reached 350,000 subscribers on his YouTube channel.
On 10 September, Chaika reached 400,000 subscribers on his YouTube channel.
