Sa Mihai was the female lead in the Japanese manga Death Note. She was a petite, cute, innocent, optimistic, and cheerful artist. She was a model for a teen magazine and was called Misa by her fans. Mihai Sa received the Death Note from Rem, the God of Death, and became the second Kira. She fell in love with Yagami Moon at first sight. She had a crazy infatuation and love for Ye Shenyue and was willing to give up everything for him. She even exchanged for the Eye of Death twice at the cost of losing half of her remaining lifespan. However, Mihai Sa's actions were often seen as foolish and even brought trouble to Ye Shenyue's plans. In the end, on the second Valentine's Day after Moon's death, she chose to commit suicide. The role of Amisa Mihai played an important role in the Death Note, but her fate was also tragic.
Suzuha Amane is a character in the visual novel. However, without more specific information about which visual novel she is from, it's hard to provide more detailed information about her character. She could be a main character, a sidekick, or have a very specific role within the story of that particular visual novel.
Some fanfictions pair Towa with Goku. It creates an interesting dynamic as they are on opposite sides of the moral spectrum. The story could be about Towa trying to corrupt Goku or Goku trying to redeem Towa. Their power levels also make for exciting battle scenes or power - up moments within the fanfiction.
Well, for Towa in Dragon Ball Xenoverse fanfiction, Krillin could be a good ally. He has a big heart and despite not being as powerful as some of the Saiyans, he has a lot of wisdom. His friendship could be valuable to Towa. Yamcha could also be considered. He has his own set of skills and his loyalty could be an asset. And Chi - Chi could be an ally as well. She's protective and could help Towa understand the importance of family values, which might be a new concept for Towa.
Suzuha Amane might also have some special abilities or skills in the visual novel. This could range from being a great fighter, which would be shown in action - packed scenes, to having a high level of intelligence that she uses to solve puzzles or outwit her enemies. Her dialogue, too, can be a notable feature. The way she speaks, whether it's with a certain accent or in a very formal or informal manner, can add depth to her character.
The relationship could start with hostility. Towa might see Goku as a threat to her plans and Goku sees her as an evil force. But then, when they are forced into a situation where they need to rely on each other, like being stranded in a strange realm. They begin to see each other's strengths. For example, Goku might admire Towa's intelligence in dealing with the strange environment, and Towa might be impressed by Goku's unwavering determination.
Demigra could be a great choice. He has his own goals of ruling over time and space, and his power level is quite high. He could see Towa's actions as interfering with his grand plans. Maybe he wants to use the Dragon Balls for his own purposes, and Towa is in his way. So he tries to either eliminate her or make her work for him, which would create a lot of conflict in the fanfic.
In fanfiction, Goku is often depicted with his characteristic strength and love for fighting. His naivete and pure heart are also commonly emphasized. As for Towa, she may be shown as mysterious and powerful. She has her own motives which might be explored more deeply in fanfiction, like her connection to different timelines and her goals related to power or revenge.