Crossover: After Becoming Illya, My Class Card Is a Little Strange

A boy bought the wrong milk and got hit by a truck, transmigrating into Illyasviel. She doesn't have the Ruby, but she does have a System that can draw class cards for different characters from different worlds. It's just that the suffixes on the class cards always seem weirdly specific.

[Illyasviel (Original)]

[Kokushibo (On the Eve of Sunset)]

[Kirito (Loungewear)]

[Emiya (300 Heroes)]

[Wis'adel (Explosive Early Morning)]

[Jotaro Kujo (Oingo)]

[Megumi Fushiguro (Shinjuku Showdown)]

Hmm... This should be fine, right? Staring at the bizarre class cards, Illya fell into deep thought. Couldn't she get a few normal ones for once?!

Single, crossover, Illya the Heavenly Emperor. Jujutsu Kaisen is the current world.