A nice shake up from other styles of manga, not too cringy and not too simple. I think that this is actually one of the best yuri mangas I've read so far
I hope this story is not going something dark, because Suiren-sama is remind me of certain character from Tomb Raider 2013 reboot
that character is Queen Himiko
that is what I feel.
Himiko The Sun Queen always choose the next successor of The Sun Queen, she always giver everything for her successor education, etiquette, culture, and war strategy by the time of The New Sun Queen ceremony she possessing the successor and obtained pseudo immortality and make her The First and Last Sun Queen
and remember Suzu have become Suiren-sama offering.