@EdSaPro Indeed, it was considerably mollifying of Enomoto-sensei to shut that possibility down so quickly, while still allowing for a very brief moment of anxiety.
This manga just keeps getting better and better! I love it so much!
I feel like the moment she called her a "nice onee-san" I knew she'd be the little sister. Had a split moment of panic when they spotted each other, but we're safe. Now onwards to meet his parents!