Mana Ishizuki

Mana is Yoritos friend from school she often gets annoyed at Yorito for how he spends so much time taking photographs of the sky instead of spending more time with his sister. Mana works as a waitress at the Azure Restaurant and often comes over to Yoritos house to cook for him. She looks after her younger sister Koyori. She also knows about Matsuris secret. Source: Wikipedia