Ahhhh i see! I get it!
Lelei knew Itami spent the first night with her in special region back then, and she doesn't tell anyone.
And this is the second night Lelei sleep with Itami but she's more clingy to him now.
and the third is at the Hakone.
3 Nights Ceremony heh.. She's already have a plan ahead before Rory and Tuka.
Damn u Lelei smart as hell
Note: ACs in most of the world can heat the air...
It's always so embarrassing when translators note things as if they were unique to Japan when they are actually commonplace, and it actually makes you wonder in what world do these translators live.