A Tenant in the Kuze Household

After watching it for so long, I don't know the protagonist's name (perhaps for convenience), and I haven't explained the main plot (how to conquer the younger sister?). It's very routine, so routine that it's boring! After reading more than a dozen chapters, I feel like I have been writing about so-and-so eating, and so-and-so not sleeping well. The dialogue between the characters is also not interesting. There are only a few chapters of dialogue on Good Morning! (Who is the King of Hello?) It is best to know clearly what you want to write, which is to treat your sister as a harem and develop a relationship. It's still a normal brother and sister's funny daily life. You have to explain the background of the protagonist, such as parents, career, and goals. The dialogue should include more interactions with my sister, such as how she patted her head very much, and how she was in a hurry to take care of her when she caught a cold without an umbrella on a rainy day! Write more about your demeanor! For example, the face turns red due to shyness, the face bulges when angry, and the hair all over the body seems to explode.

Doesn't the protagonist have a name?