Normally, when you see characters in the sky, it's sort of memorial. Now that it's been translated, I know what it actually means and am not panicking like a lunatic/moron. So thank you, Coconut, for translating this.
Can't help but wonder if Reisen actually trusts her older two unsupervised, or if a character we haven't seen was babysitting them. Last time she took one child out, she dropped the other two off at Keine's home.