DESCRIPTION
You can use SE by introduction of below mod.
(The mod is for koikatsu. However, It also works in HS2.)
https://www.pixiv.net/artworks/93914192
You also need the introduction of latest vnge (for HS2) to play SE.
https://mega.nz/folder/oiB2wAQK#ojGIzlAN-1B-263uUDEalQ/folder/Jm5xAIbA