The 'How Not to Summon a Demon Lord' sex comic is definitely not appropriate. It goes beyond what is considered acceptable in terms of decency and can have negative impacts on viewers' mindsets and values.
Summoning a demon in comics often requires a combination of factors. It could involve knowing specific spells, having access to forbidden knowledge, or being in a particular supernatural setting. But remember, it's all fictional!
First, you need to have a deep understanding of the original work's characters and world. Then, come up with an interesting plot that fits within that framework.
Overall, the ending of the manga was well-structured. It tied up loose ends and left fans feeling content. The resolution of conflicts and character developments were handled smoothly.