The supporting character's harem is very normal - Chapter 503: This Male Lead Is Too MiserableLaleth Garden.

Shiro Sakamaki was reborn into a new world with one simple goal: to live a peaceful, luxurious life free from drama.But when he transfers to a prestigious high school in Tokyo, he quickly discovers that his new reality is anything but ordinary. The city is a strange mix of supernatural forces, ghostly phenomena, and events that feel like they’ve jumped straight out of an anime.Before long, bizarre occurrences follow him everywhere, along with a series of beautiful, mysterious girls—from the arrogant, blonde twin-tailed exorcist, to the mysterious quintuplet sisters, to a passerby heroine with hidden powers.As Shiro gets tangled in the supernatural chaos, he realizes he’s at the center of something far darker. Cursed relics begin to surface, and Ancient, Evil Outer Gods—whose very presence bends reality—start to stir.Now, Shiro must figure out why he’s caught in this web of strange occurrences while trying to survive school and the surreal new world he’s been thrust into.

Su Yu, a descendant of a royal chef, entered a novel of the immortal world. She became a second senior sister who took over a mountain full of wounded and disabled from her missing senior brother.

According to the original plot, her third junior brother’s golden core was broken. Her fourth junior brother gets into trouble. His fifth junior brother was deceived… In short, they are dead, become casualties, or are injured.

Su Yu: Ah, this… our division seems to be over.

Looking at a group of skinny, weak, or disabled juniors, Su Yu, who wanted to retire: What kind of immortals are cultivating and fighting? Come and help me cook! Peace is a blessing!

However, when she researched the ingredients in this world of cultivating immortals and decided to make a pot of delicious vegetables… the spiritual energy in the wok was great and the fragrance spread, but there was a faint circle of energy, which turned into super-quality spiritual pill that could repair broken meridians lying on the bottom of the wok.

Su Yu: !

The seriously wounded and waiting to die juniors: !

Master Su didn’t believe in failure. When she was preparing to make a lotus leaf roasted rib, oil dripped and the aroma was overflowing. But at the bottom, there was a faint gleam of light accompanied a two-foot-long spirit sword, unparalleled in sword energy and a rare treasure once in a century.

Junior brother who gave up cultivation because of lack of spirit sword: !

Looking at the pots and pans full of spiritual pills and spiritual treasures piled up in her small kitchen, Su Yu frowned.

You may not believe it, but I just want to make a dish.

- Description from Novelupdates

Kael was once a being so powerful even the gods feared him—until he was thrown into The Null, a realm of endless torment and eventually cast into inexistence. But he returns, reincarnated as a powerless beggar in a broken world ruled by monsters and corruption.With memory of godly blood on his hands, he is determined to reclaim his strength, survive the Nexus's deadly trials, and tear down the heavens themselves.But it's a matter of time before the gods and celestials know he’s returned. And this time, they will not make the same mistake twice.> ◇ Ravager (Rank E) Eliminated. 20 VRP Gained.> ◇ 0.00109% Memory Unlocked. Forgotten Technique: Blight Shield Relearned.> ◇ Ather'valis, The God-Killing Blade, has been acquired.

There are a total of seven sins, and a revelation is made to a young man named Alex that he is destined to become a demon lord, more especially a demon lord of sin called LUST.

It's not like he can change that and because he always knew something about himself was different—not in a physical sense, well, maybe a little—and not in a mental sense—but rather because he is thrown into a demonic war that compels him to accept his new reality.

He was only aware of a difference in himself. Relating to him and the ladies who are drawn to him... Well, it was more or less like he was a magnet in front of all the girls, and all the girls were drawn to him like a metal.