I Possessed Into a Reverse Harem Novel

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I possessed the heroine in a reverse harem novel, where there was no such thing as skinship.
But was this an R19 novel?
In the original story, the heroine, a wizardess, helps various male characters with her magic and is loved by them.
But when I actually possessed the novel, in order to increase my mana, I had to consume the men’s energy.
Also, the men I helped cling to me to ‘eat’ them……?
Wasn’t this novel for all ages?