From Chibi Manga
I'll give you my first time...
Haru-chan is a boy who's beautiful like a girl. To Hana, he's an important friend like a "best girlfriend"
...so she thought...
Then they were locked together in the pool during a power outage. Relationship between the two has always been the same, they thought, yet...
Sweet 16, It feels like something will change.
16 sai, Hajimete.