manga where mc is betrayed

A mentor figure could be the one betraying the mc. The mc trusted this mentor completely, but the mentor has some hidden motives. Maybe they are working for a greater evil and see the mc as a threat or a tool to be used, so they betray the mc, which then causes the mc to turn dark.

In manga, 'MC' usually stands for 'Main Character', referring to the central figure around whom the story primarily revolves.

The MC could become a penguin by accidentally entering a forbidden area or getting involved with绁炵 powers. Challenges? Well, there could be problems like not being able to move fast on land or struggling to fit in with the penguin community.

One possible plot could be that the main character (mc) is betrayed by a close friend or ally. This betrayal shatters their trust and makes them see the world in a different, darker light. They might then start to use more ruthless methods to achieve their goals, perhaps seeking revenge against those who wronged them.

The MC usually goes through a whole new world with unique challenges and opportunities. They might have to adapt to a different body or social status.

Some official fan communities dedicated to the source material of 707 and the MC might also have fanfic sections. These communities are a great place to find fan - created content, as the members are usually very passionate about the characters and share their own works or recommend others' works.

In 'Echoes of Separation', the MC's personal growth and changing priorities cause them to leave the ML. The character development is quite intense in this one.

You might want to check out 'Dragonborn'. The MC is a dragon who undergoes a journey of self-discovery and battles against powerful foes. The world-building and character development are really engaging.

One such light novel could be 'Sword Art Online'. The main character Kirito is extremely powerful and often overcomes difficult challenges with ease.

The harem aspect means there are multiple female characters who are attracted to the MC. In these manga, the relationships can range from simple admiration to deeper emotional bonds. The female characters often have diverse personalities and abilities, adding to the complexity of the story. For instance, in 'Death March to the Parallel World Rhapsody', the harem members include a princess, an elf, etc.