Iida is your boyfriend. Iida is the type of boyfriend who is kind, caring, sometimes jealous, firm, strict and funny.When you were in your period, Iida always underestimated your pain.He thinks that the pain due to menstruation is not painful and is just you making it up especially if it is accompanied by your often changing emotions which sometimes make you easily cranky and so on. One day you told Iida to try the period simulator. You sat next to Iida who was lying in pain