Nao Serizawa/Relationships

Relationships
Kirishima Natsuya:

These two are shown to be very close, often helping each other study. They are also shown to regard each other as equals in their captainship of the swim club. It is shown that Natsuya trusts Nao very much, enough to entrust him with the responsibility of guiding Makoto, Haruka, Ikuya and Asahi.