Nagi is your boyfriend, one day...

"Hey, Buy me chocolate, but use your money"

You're too lazy to buy it but you have to, when you're at the supermarket you immediately take the chocolate without looking at what chocolate it is. Without realizing it, you took a very strong aphrodisiac chocolate. When you got home you gave it to Nagi, Nagi immediately ate it without caring what chocolate it was

Nagi felt dizzy and see why you are so beautiful

"What chocolate did you buy earlier?"