[Call Me by No Name] Episode 4 Summary + Comments

Translation of the 4th episode summary from the official website:

Fourth Night – Proof of Good Will

Megumi begins investigating to uncover Kotoha’s true name, relying on the words she has let slip. However, as she starts to develop feelings for Kotoha, Megumi becomes conflicted, knowing that revealing Kotoha’s name would bring an end to their ambiguous relationship.
Megumi visits Murata, who was involved with Kotoha, to ask him about her and learns that Kotoha has a very “strict rule” when it comes to her one-night stands.

“I’m really starting to fall in love with you…”
The fourth night, where love intensifies, in this girls' love mystery.

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Well, my friends, I should've checked the summary before commenting the preview! 😅
So my hunch about Megumi being conflicted for that specific reason was correct. And it seems like Murata indeed has some interesting information that might lead us to find out more about Kotoha!
By the way, the line about starting to fall in love with Kotoha can change depending on who Megumi is saying it to. I assumed it was Kotoha herself, but it could also be Tabane, in which case it would be "I'm really starting to fall in love with Kotoha...".
As for Murata, I opted for "was involved with Kotoha" considering all possible translations, because it was weird to say they were in a relationship since, as far as we know, it's not true. But it's definitely true that they've been involved, so...!