Romantic Christmas Eve! What Does the First Kiss Taste Like? / I Can't Go Back Empty-Handed! Let's Go to the Make-Out Park! Episode 4

Jealous of her sister Chika bringing home lots of cute guys as boyfriends almost every day, Yamada steps up again to seduce Kosuda, just in time for Christmas Eve. Kosuda, on the other hand, gathered his guts again and asked Yamada out on a date on Christmas Eve, despite Yamada just waiting for him to ask her out. With Kosuda's gift of ear piercings, Yamada decoded this as a signal that they should look for a love hotel. Unable to find a cheap one, Yamada decides to go back down Love Hotel Lane to keep looking, until a nervous Kosuda attempts to kiss her, but his delays pissed a happy yet equally nervous Yamada off that she did the kissing herself, causing a massive headbutt. One way or another, Yamada's first kiss happened. Then her nervousness got the better of her that she ran away from Kosuda to hide somewhere.