Sister Princess

Season 1

Episode 18: ...Eternal...Vow...

Wataru is having a dream of Chikage, and when he wakes up, he sees his body still asleep on the bed. Freaking out, Wataru runs through walls trying to find someone who can see him, but no one can except for Chikage. Chikage says she can return him to normal if he first does a few things for her, and they proceed into another world where they have a trippy love scene, Chikage is kidnapped by the grim reaper, and they almost get married in a church. Wataru then returns to his body, and to the delight of all his sisters, wakes up.