Damn, this sweet turn of events are just inviting a huge sad/bad turn of events at the end of this arc/series. I mean, It feels like they are going to have a hate scene in the end of the arc like their friends/members(the one with the same type of Teigu as Tatsumi) shows up when they got back and all truths revealed.
There would a "Because I love you, dont die because I'm the one that will kill you" from her to Tatsumi