I knew it that he's just teasing & no real harmful intention (or else the secret will be out and spread fast especially in entertainment industry and at a shooting location with many crews) it's just that he likes interesting things / events and at the end notes it mentioned that he wants the growth of a fellow younger actor.
https://www.mangago.me/read-manga/ao_ashi_midnight_dinner/
I am the #1 Taira stan
It was mentioned that there will be a continuation for his story at the end of the special spin-off manga! I'm looking forward to it along with Aoi's brother Shun manga spin-off: Ao Ashi Brotherfoot! (๑•ㅂ•)و✧