Tsurugi is a weirdly nuanced character for a gatcha game about collecting anime schoolgirls. The internal conflict the character faces is that she is feared, respected, and supported in her life as the leader of a paramilitary organization but finds social interactions outside of her inner circle to be confusing and overwhelming, which impedes her desire to "be more like all the other girls". She's very neurodivergent-coded and I can heavily relate to the struggle to have for oneself the experiences one sees as having missed out on. I was really surprised when I read her arc in the game because it was kind of sweet and the otakubait creepyness was fairly minimal. Sadly, I think she's a victim of the changes made to BlArchive's creative direction early on in its life cycle. She's in the highest rarity tier for the regular drop pools and got an event-limited swimsuit variant almost immediately after launch (and the story in that one is about her girliepops taking her to see the ocean and its super super sweet) but in the five years since then she hasn't been featured much at all. Meanwhile, one of her besties in the lowest rarity tier became a prominently featured character due to fan responses. The silver lining to this unpopularity is that the SFW fanart crowds out the super gross porn, more popular characters get more NSFW in the NSFW:SFW ratio... I think.