Imperfect Metamorphosis/Heartwarming


 * The entirety of the sidestory A Very Nineball Christmas is composed of this, from the beginning of Daiyousei's quest to get a present, all the way to the end where the she ends up being given the present by the person she set out to buy it for.
 * Any Cooldown Hug between the Scarlet Devil residents is this in spades.