Osananajimi no Mune ga Ookiku Natta no wa Ore no Sei Kamo Shirenai(2020)

Osananajimi no Mune ga Ookiku Natta no wa Ore no Sei Kamo Shirenai

In his second year in high school, Yamato has a big problem. His best friend from childhood, Honoka, has a certain stress-induced illness that made her chest huge. Now he struggles to protect her from those who look at her with predator's eyes...!?