This is an Illustrious lora for Japanese style Classroom backgrounds.
A weight of 1 to 1.5 works well with this with most models. Sampling Steps of 15 to 35 works well with most models, as does a CFG Scale of 3.5 to 7.5.
Prompts for this lora are ( JapCla, interior, classroom, ).
JapCla_(Background)_(Illustrious)_(AD).safetensors
Japanese Classroom Training Data.zip