This work includes 346 images + 1 animated comic.
Pixiv preview: Animated comic (voiced) - My Friend's Older Sister - 友达のお姊さん (346P+1V) - Illustration by CUTE_XX - pixiv
Video preview: https://mypikpak.com/s/VOxB6senJ7NWX2Dt0HlvmSM_o2
The storyline sequence is: The Wolf on the Train > My Friend's Mother > My Friend's Sister
Train Wolf: (Mini-Drama) Train Wolf (309P) - Fansky
My Friend's Mom: (Mini-Drama - Voiced) My Friend's Mom (233 pages + 1 video) - Fansky