Spring in the Air and Backs to the Wall

Hardly anyone at first year Yuna Oka's high school has heard of her... but she's actually a published comic artist! Yuna is a newbie, but she's a professional who's scored her own serialization in a magazine for romance comics! Overwhelmed by all her deadlines, Yuna's editor decides to introduce her to an assistant. But the man who shows up to her apartment is clearly super sketchy... What's up with him?! (Source: MangaPlaza) *Note: Includes two bonus chapters.*