Huh what? You meant Michiru's sister? No wtf, You (it's her name) didn't have any connection with ghost or whatsoever, she just overprotective sister.
Even Michiru's tentacle is more like forest guardian rather than ghost/evil spirit
The ghost in window is the weirdhorse that befriended with Miko's dad. It's like the guardian of the house, that's why the shotacon ghost scared and leave the house
Actually it's the weirdhorse. Just like when that thing saved Miko's dad from Michiru's tentacle, and make them calm by just lick it.
Same like this one, the shotacon ghost is afraid to the horse
Cuz the anime cut several plot since it's impossible to adapt all plot from one vol within just 4 eps. And actually Millicent doesn't really know how Komari's power is, so she just vaguely remember what happened back then and don't know what thing that triggered Komari's power.
Anyway, it's...
She just hates Komari cuz whatever she did, her father won't appreciate it, and he will compared her to Komari (thanks to the every bullshit things Arman told to him)
For sure it's one-sided love, but it's not like Asumi deny that relationship either. She can just say no when Nanao is horny, but instead Asumi just enjoying have sex with Nanao every single day. At this point, finding Mai is just excuses for her to keeps having fun with prostitutes. Even she...
I can't believe Asumi turned the pure and innocent Nanao became a horny sex demon which fucked her everyday for 2 weeks straight! Yet, Asumi still want to have sex with other prostitute girls, what a slut.
Well I too hope that Asumi will have another rounds with Serina though.
Good thing author didn't pull shitass plot such new character who is being a third wheel that will make Ayu feels inferior and trying to keep her distance from Yukari. Instead it was Yukari who's feeling jealous