Just another day in the life of the sole XiYuan child

Bei Yuan realizes that he and his no-longer-little "little" toxin are now raising a "Little Toxin 2.0" with a few evolved features. Featuring Lu Ta, a blue frog, BeiYuan in a classroom of wailing toddlers, and WuXi being WuXi.
Genre: Frog and Family Fluff.
This fic is also available on AO3 under the same title and the same author username :)