A plot could be that you meet a new friend at a concert. You both love the same band. You lose each other in the crowd but then find each other again at the end of the concert. You exchange contact info and start hanging out.
One plot might be that you move to a new neighborhood. You're feeling a bit lonely at first. Then you meet a new friend while gardening in your front yard. He offers to help you with some plants. You start chatting and discover you have the same taste in movies. You then start having movie nights together at your place or his, and this new friendship brings a lot of warmth and fun to your new life in the neighborhood.
One possible plot is that the friend is facing a family crisis, like a divorce or a problem with his children. The wife steps in and offers her advice based on her own experiences in family life. She might help the friend communicate better with his family members, and eventually solve the problem.
Maybe the parolee, who is the cousin's friend, has a troubled past but wants to start anew. The cousin's friend gets involved in community service projects to show their change. The cousin supports this transformation by participating in these projects with the friend and helping the friend deal with any setbacks or temptations along the way.
One possible plot could be the discovery of a new type of chakra that has different properties than the ones known before. This could lead to a race among the villages to harness it, causing both cooperation and conflict. Another plot might be centered around a new villain who has the ability to manipulate time, creating chaos in battles and making it difficult for the ninjas to counter. Or perhaps a story where a young ninja from a small, unknown village shows up in Konoha with a unique skill that could potentially change the balance of power in the ninja world.
One possible plot is the struggle for recognition. A new agency has to prove itself in a competitive market. For instance, a new design agency may have to show that its designs are more creative and cost - effective than others. Another plot could be about internal growth. As the agency hires more people, it has to deal with different personalities and work styles. A third plot might be the agency's journey to expand its services. Say, a new advertising agency that starts with just print ads and then moves into digital advertising.
One possible plot could be a story of friendship evolving from a simple neighborly hello. For instance, they start sharing morning jogs around the block and from there, a strong bond forms.
One possible plot is that the friend is possessed after visiting a haunted place. The man then tries to find a way to exorcise the spirit. Another could be that the possession is a result of a curse, and the man has to break the curse to save his friend.
A plot might be that the mom's friend is an old acquaintance who has some news about the family's past. The son catches them talking about it, and it leads to a discovery of family heritage. The son at first is a bit startled to see his mom with this person he may not know well, but then becomes interested in what they are discussing.
A possible plot for a 'first kill' short story is that of a young witch. She has been taught magic but has never used it to harm. However, when a dark creature threatens her family, she uses her magic to kill it. It could also be about a fisherman. He has always caught small fish, but one day he catches a huge and dangerous sea monster, which is his first real 'kill' in the sense of a major and dangerous catch.
One possible plot could be that Minato is a young artist trying to make a name for himself in a big city. He faces rejections from galleries but finally finds an old mentor who helps him achieve his dreams.
One possible plot could be that the landlady is hiding a dark secret in the attic of the house. The tenants start to notice strange noises coming from there and begin to suspect something is wrong.