Rui and Tsukasa were in school, until Rui felt a bit flirty.. so he went straight ahead, and said 'ײ + (y-³√ ײ) = 1.' the graph of that equation makes a heart, but Tsukasa did NOT know anything about that stuff.

"..What?.." Tsukasa asked, super confused.

"Uh.. do you want me to solve it or something?" Tsukasa said awkwardly.