Sentinel (BNHA x OC)

Bonus Chapter: Yaze's Birthday (Lime)

A/N: The art is made by me.

The common area of UA's Heights Alliance dorm building was bustling with excitement. Class 1-A and Class 1-B had come together to plan a surprise party for their beloved teacher, Sentinel. Streamers, balloons, and a large banner reading "Happy Birthday, Sentinel-Sensei!" adorned the walls. The students had gone all out, preparing an array of snacks, drinks, and a towering birthday cake.

Midoriya, Uraraka, and Iida were busy arranging the final decorations, while Bakugo grumbled about the noise but secretly helped with the setup. Meanwhile, Todoroki and Yaoyorozu worked on arranging the food table. Members of Class 1-B, including Tetsutetsu, Kendo, Kamakiri, and others, mingled with their peers, contributing to the lively atmosphere.

The room was filled not only with students but also with teachers and Pro Heroes who had come to celebrate Yaze's special day. All Might, Aizawa, Principal Nezu, and other faculty members mingled with the students, adding to the festive atmosphere. The third years--Togata, Hado, and Amajiki--were also present, their cheerful spirits lifting everyone's mood.

The Wild Wild Pussycats--Mandalay, Ragdoll, Pixie-Bob, and Tiger--joined in the fun, their energy infectious. Fat Gum, Gang Orca, Rock Lock with his wife and kid, Sir Nighteye and his sidekicks Bubble Girl and Centipeder were also there, making the event even more special.

Ryukyu stood by the entrance, her heart pounding with excitement. She had orchestrated the entire event with the students' help, wanting to make Yaze's 23rd birthday truly memorable. She had one more surprise planned for later that evening, but for now, her focus was on making sure everything went smoothly.

As the final preparations were made, Ryukyu spotted a familiar face slipping into the room--Yiro, Yaze's younger brother, who had flown in for the special surprise. She smiled at him, giving a reassuring nod.

"Alright, everyone, he's on his way!" Ryukyu announced, her voice a mix of nerves and excitement.

The room quickly fell silent as the lights dimmed, and everyone hid behind furniture and decorations. Moments later, the door opened, and Yaze walked in, a curious look on his face.

"Surprise!" The room erupted in cheers as the lights flicked back on. Yaze's eyes widened in shock before a broad smile spread across his face.

"Oh wow, this is incredible!" Yaze exclaimed, his eyes scanning the room filled with his students, colleagues, friends, and his brother.

Midoriya stepped forward, a bright smile on his face. "Happy birthday, Sentinel-sensei! We all wanted to do something special for you."

Yaze laughed, his heart swelling with gratitude. "Thank you, everyone. This means a lot to me."

As Yaze continued to take in the surprise, Yiro stepped forward, his face beaming. "Happy birthday, big brother."

Yaze's eyes widened further, and he quickly crossed the room to pull Yiro into a tight hug. "Yiro! This is the best surprise of all. I can't believe you're here!"

Yiro grinned, looking up at his brother. "I wouldn't miss it for the world."

The party was in full swing, filled with music, laughter, and games. Yaze moved around the room, chatting and enjoying the festivities with his students, fellow Heroes, friends, and his brother. Ryukyu watched from a distance, her heart warmed by the sight of Yaze's happiness.

Class 1-B members were actively participating in the festivities. Tetsutetsu and Kirishima had a friendly arm-wrestling match, drawing cheers and laughter from their classmates. Kendo and Yaoyorozu organized a trivia game about Hero history, engaging students from both classes.