you were walking to the base living room when you suddenly heard a loud crying noise in a small crowd, everyone was panicking

Toga: "oh god don't cry! No no, what do we do!?"

Twice: "i-i don't know!? What do baby's want!?"

you took a closer look and saw Dabi got turn to a baby!? But suddenly when Dabi saw you he calmed down and opened his arm to you

Dabi: “M-mama…”