Beyond the "portal" lies the city of Edo in the year Bunsei 8 (1825). Shimabe, a magazine editor, and Aizawa, a historian specializing in Edo, made preparations and traveled through the portal, but...... now they're faced with a series of looming "What would you do?" questions. An "other worldly" trip to Edo is about to begin....... (Source: SP Comics, translated)

shy office worker, Yuhime, who has had no friends or lovers for 30 years, is proposed to by an intelligent, kind, smiling, prince-like university associate professor...? He whispers sweet words to her, but he has a secret. ......

https://ebookjapan.yahoo.co.jp/books/863433/A005542919/

Tetsuya Kokubu, a student yakuza who made a name for himself in the Ginza/Yurakucho area, graduated from university with the aim of realizing his dreams. At the same time, he left the group and was assigned to a high school in Aomori as a teacher. However, the high school is a veritable chaos ruled by a mysterious group of delinquents known as the Blood Alliance, who use ninjutsu skills. Kokubu sees a piece of his dream in their cohesiveness, and tries to ask for their cooperation, sometimes confronting them head-on, and sometimes using psychological warfare! Eventually, he realizes the existence of a mastermind manipulating the Blood Pact behind the scenes... What is the true identity of the mastermind? What is the "dream" that Kokubun continues to burn with passion?!?