When they were five years old, Shisei snuck up on Saito, who was sleeping, and stole his first kiss. Exploring I'm Getting Married to a Girl I Hate in My Class anime's ending and Saito's first ...

In ‘The Girl of the ... when Yuri requests a kiss, which Ursula reluctantly confirms is necessary for him to become Yuri’s Guardian. Ein accidentally kisses her forehead instead.