Kohinata Hikari and Ooki Futaba have together found joy in many things through scuba diving and the most everyday of events. Hikari was born and brought up in a small oceanside town on Izu, and Futaba moved there from Tokyo, but the two polar opposites met at Yumegaoka High and instantly hit it off. The always-reserved Futaba found her perfect foil in the cheery and optimistic…