Tawawa on Monday: Season 1 - Ai-chan and the Stairs to Adulthood (2016) - (S1E12) - Backdrops — The Movie Database (TMDB)

One Monday morning, Salaryman asked what Ai did during the Christmas day, which she initially refuses to answer. Later, she revealed that she 'has taken a step into adulthood', becoming from 'I-chan' to 'J-chan'.

Tawawa on Monday: Where to Watch and Stream Online

Tawawa on Monday (TV Series 2016–2021) - Episode list - IMDb

Ushiro no shoumen daare (1991) - IMDb

Baby Looney Tunes: Season 1 - School Daze (2002) - (S1E5) - Backdrops — The Movie Database (TMDB)

Tawawa on Monday: Season 1 - Ai-chan and the Stairs to Adulthood (2016) - ( S1E12) - Backdrops — The Movie Database (TMDB)

Bunnicula (TV Series 2016-2018) — The Movie Database (TMDB)

The Careless but Loveable and Cute Junior, Ai and Private Film: Tawawa on Monday OVA Review and Reflection

Baby Looney Tunes: Season 1 - School Daze (2002) - (S1E5) - Backdrops — The Movie Database (TMDB)

Tawawa on Monday: Season 1 - Ai-chan and the Stairs to Adulthood (2016) - ( S1E12) - Backdrops — The Movie Database (TMDB)

MT500 User Profile

Tawawa on Monday (TV Series 2016–2021) - IMDb

Isek'Ai' Tawawa, Getsuyoubi no Tawawa Wiki

Tawawa on Monday 1x12 Ai-chan and the Stairs to Adulthood - Trakt