It's probably something weird like he used too much energy in one day and returned to being male. If he sleeps for his usual 38 hours a day he'll return to being a girl.
If only he could've built Targets, CVS, and low income apartments in time. This plague would've been cured in two chapters from the infected looting and burning them all down.
Hopefully this changes up the revenge isekai trope. Only lasts 4-5 chapters his whole revenge and gain strength is actually delusions from a mixture of immense pain and mental magic cast by his cousin. Turns out it's all just a dream he was giving himself to ease the pain but cracks in "reality"...
Well not like they could go with the standard Katana in a world of magic, and soy/miso sauce is a over done trope. Couldn't go with a Zero as it had no armor or controls that'd allow escaping the base, couldn't go with a tank as their feared nemesis was the legendary Bob Semple. May as well send...
@thtgiang There's like 5 Hime's 10 creepy cats, a few kokoro's at any point in time. Could just be a body double that wanted to go see Flora while the others wanted to annoy Oscar by sleeping on Oscar's work computer, chair, coffee mug, etc.