If you've never played a game like this before I'll explain it. It's a game of connects where you try to use the relationships between characters to try to connect everyone to one character, this case Krillin. Now you only have up to seven connections to make it back to Krillin, but you can do anywhere from one to seven connections, you just can't go over. If that's not clear I'll give some examples:
EXAMPLE 1:
Start: Red Hair Shanks (One Piece)
1. Shanks was a cabin boy along side Buggy the Clown
2. Buggy the Clown teamed up with Alvida
3. Alvida is dubbed in Funimation by Laurie Steele
4. Laurie Steele was the voice of Young Krillin
EXAMPLE 2:
Start: Kisara Nanjo (History's Mightiest Disciple Kenichi)
1. Kisara is the Daughter of Kisara's Mom (obviously but she does have another name besides that)
2. Kisara's Mom was voiced by Michele Specht
3. Michele Specht is engaged to Vic Mignogna
4. Vic Mignogna is well know for playing Edward Elric
5. One of Edwards closest confidants in Maes Hughes
6. Maes Hughes is voiced by Sonny Strait
7. Who's most famous role is Krillin (went longer than need there to show a seven example)
See what one's you can come up with to connect to Krillin, it should be fun.