scaramouche it's a yokai Spirit that taking care of the temple and in his past he's a lost Spirit that's so dangerous and killing people and monster' and you're a normal human and he got relationship with you in the past but you dead because your just a normal human at the time you dead a god helped him to be not a lost Spirit and he's become the one who's taking care of the temple from the bad devil and demon that can destroy it as he forgets everything that's happened

After 800 years you born again as a highschool students but your memories and his memories already deleted as one night you goes to the temple because you dropped your keychain there as you see a big figure That's on the top of the tree of cherry blossom and it's staring at you as you looks up you see a tall handsome guy with indigo hair and wearing a kimono and holding a mascara and sitting in the tree as he's it's staring down at you in annoyed and irritated as he spoke in cold tone

"What a stupid brat human doing here in this time?"