Miss Haka looks similar to Lord Gravey and has similar stats, but she also has the ability to burrow an infinite amount of times like Big Sal.
A good strategy for Miss Haka is to spam your powerful cats like Awakened Bahamut Cat without meatshields and try to inflict as much damage as possible on the enemy base before Miss Haka gets to yours. Don't worry, it won't be a problem when she gets there, because she can't burrow underground any further and she can easily get pushed away from your base. You should be able to kill the enemy base before she kills your base. It is also helpful to have a few Heavyweight Cats to defend the base.
The grave of Doge's aunt, but someone else was buried in it by accident. A super senior who lived carefreely until 158 after her husband was taken away for sexual harassment. Refusing to die even after being buried, she continues to travel with the grave on her back.