That parenting portion. 10 out of 10. I mean, for something of this theme, its nice. Battle suits, monster horde and parenting. I don't really like the garm designs though. Its so-so. Characters... Well, this is Japan, so, I've lowered my expectations since they have different values and culture. I wouldn't know what they would consider good. I mean, look at most big anime MCs (Naruto, Goku, Ichigo, Eren, Natsu). Its very different from what you would like in real life.
Also, what the fuck is up with people? Just because there were lady parts exposed doesn't mean there's anything going on. Read it. Maybe then, you'll understand that its pretty damn pure. Shirogane Papa is nice papa. Good uncle too. And boi, I love how MC helps Katua with Celica. Not even a little bit intrusive, but still managed to pull her away from becoming edgelord supreme.