I do love how the Youmu graphic on her panties seems like it could have been drawn by Dowman Sayman. Maybe this is an alternate universe where Sayman's "Girlfriend Panties" business (no, this is not a real thing) is a huge success.
Would you call "old" a 10 YO time traveler girl from centuries ago? Being frozen and revived it's almost like time traveling for me, so no Age gap for me-