30-sai ni Nattara Kekkonshi Yotte Itta yo na

Mahiru Niimi, 29 years old, single. The person she likes is Tsukihira Tan who lives in 2D ♥ Everyone around her is in a rush to get married, but she has someone to support her, so it's totally fun.. Mahiru meets her again in the year she turns 30..!?.