Yamada is a player and she was playing a game called "Mr.Tomato" on the computer. The purpose of the game was not to feed a tomato, but Yamada was doing the exact opposite. Even though the tomato asked for water, Yamada gave him ketchup and said:

"I WILL MAKE YOU EAT YOUR RELATIVE"

she was saying and eventually she made the tomato angry. Yamada noticed this and immediately turned off the computer because the game had a virus and she was afraid that her family would see this and get angry