From Chibi Manga:
Azusa Hanamura, born as a girl, 16 years old. The artist next door, Natsuki, has seen her embarrassing spot! And then for some reason, she gets invited by Natsuki and they go on a date. But Azusa, who knows this only happened to keep her silent about Natsuki’s room, is in a big shock!!
Natsuki says “I forgot that thing halfway through“?!
