Koukando ga Agaranai

The art in "Koukando ga Agaranai" was great, the characters were cute, the manga had the potential to be a great isekai period romcom manga. Sadly, it fell short.

My review contains spoilers so read at your own risk:

I personally didn't feel the "love". It felt kinda forced and the ending was rushed and a tad disappointing.

The manga had a nice initial premise, a typical isekai where a Japanese girl dies and resurrects as "Licca" into a historical/european alternative world.
Her goal was simple; to make mysterious adopted boy-kun (that her parents took under their wing) to like her. Because he seemingly had below-zero level of affection towards her. Which made her cling to him, which consequently made them spend most of their time together. As a result, the boy starts developping feelings for the main girl. However, she only perceived him as a "lil brother" that seemingly disliked her.

Obviously, as most romcom plots, the main boy falls for the main girl. However, protag-nee-san did not return fake-ototo-kun's feelings.
Simply put, her love and his love, were different. He saw her as a woman, while she saw him as a lil brother figure.

What i disliked about this manga is that it had a lot of potential to bring about a cute, funny, interesting story with a goal, a moderate challenge, and a satisfying ending.

The boy could have really had 0 interest in her, and we could have had a story where she tries to win him over as they learn to love, bond & understand each other over time.

Instead, it turned into siscon boy is too proud and scared to confess to the heroine. While she wants him to love her but is not able to process the idea that he could love her, nor can she genuinely love him as a "man", instead of going nonchalantly with the flow.
So, we ended up with an abrupt and rushed ending, about a one-way romance that is forced down our throats because it had to end on a positive note. In which we do not even care if the characters end up together or not, because their "love story" has no substance.