Only customization options that apply to the outfit your character is wearing are shown when customizing your character's appearance. To sit down you just need to be close to a bench or couch and press CTRL or C. Students can now sit on benches and the couch that can be found in Building A. There's a new ahoge option called "Long Strands". NexTone made the morning theme that was added in the last update twice as long.
There's a new voice done by MS KIRA Visualz. I modified the hair of the "Aoi School Girl" asset from the Unity Asset Store to make the "Bijin" hair. One is called "Messy #2" and one is called "Bijin". This update took longer then expected due to personal issues but here it is.