Conceal
A tsunami carries a husband and his husband up into the sun, where they're going to conceal something.
Imagine the tsunami taking the two husbands up into the sun. Hear the water gushing. That tsunami is gigantic. What are they going to conceal in the sun?
せん
くぐ, ひそ, もぐ
None
The husbands are going to conceal their pet centaur (せん) in the sun. The local government isn’t too pleased that they have a pet centaur so they have to conceal it in the sun so it doesn't get confiscated.
Just make sure to remember there is a centaur up on that tsunami with the husbands, heading towards the sun. They need to conceal the centaur to keep it safe.