Hear me out. College. All the captains spoiling Daichi with food.
Like they would be eating and Oikawa is full and "Do you want this Sawamura?" Ushijima giving him energetic bars like "Oh, you have a long day right?" Bokuto making him taste every single attempt at baking, like "Sawamura!! Are they good? Should I put more sugar? I should, right?" Kuroo grabing pieces of his food to tease him and then giving him some of his own? Moniwa and Sawamura going out for food cause "I heard this place had really good food." DAISHOU GIVING HIM FOOD TO START A FIGHT WITH KUROO AND "Mika-chan made a lot, i can't eat all of this."
They do it just cause they're friends, of course.
It has nothing to do with how cute he is when he asks "Really? Can I have it?"
Of course, it has absolutely nothing to do with how blessed they feel when he smiles after tasting the food.
Terushima seeing all the photos the others post and being so damn jealous because he is still in high school.