The Dreaming City Chronicles: Quest for the Vanished World

It's another ordinary day in the ordinary lives of Mari and Kotone when something extraordinary happens: the townspeople begin to collapse one after another before their very eyes and transform into horrific monsters! Somehow unaffected by the unknown phenomena, Mari is guided by an ethereal voice and gains the ability to transform into Lilium, a heroine with the power to face the monsters head-on and send them packing. However, saving her home won't be as simple as clobbering her former friends and neighbors... The reality is that the door to another world has opened, and miasma is pouring out through the cracks, turning the town she knows and loves into an unrecognizable hellscape. Only by venturing into the unknown and staging an invasion of her own can Mari hope to stymie the threat and protect all she holds dear.
 
And yet, there are still so many questions left unanswered. What's the truth behind the miasma and the terrifying monsters that roam the streets? How and why did the two worlds become connected in the first place? And perhaps most importantly, is there truly a way for Mari to reverse the damage that's already been done and reclaim her old life?

“Who is it?”
“Uh, that, I mean, can I stay over…?”
It’s been 10 years since we last met, and that person, my first love, didn’t even notice me. If that’s the case, I want to make them turn around and take notice of me now!
“…Alright, I understand. Just for one night, okay?”
“Yes! Thank you so much!”
I make a late-night snack for that person, who’s hungry. After all, you can’t start without filling your stomach first.
“Thank you for the food!”
“It was nothing much! I’ll clean up now!”
As I try to get up, I trip over something on the bed.
“Kyaa! I-I’m sorry, is that… a woman’s photo?”
“Ah, yeah, my parents sent it to me as a matchmaking photo. I haven’t looked at it, but I can’t imagine getting married, and I’m too busy with work, so I’ve been turning them all down.”
To think that there’s such a rival out there… my heart starts beating loudly.
“So that’s how it is… shall I try experiencing it?”
“Experiencing what?”
“Experiencing… oh, being a young wife.”
A one-night-only relationship has begun between the two of us, who have reunited after a long time…
…From here on, please enjoy the rest of the story!

If you happen to get the opportunity, I would appreciate it if you could upload the H-RPG "The World's Egg - For Those Who Dream".
 
Steam link for reference purposes: The World's Egg - For Those Who Dream

Both the story and the gameplay have leveled up a lot since the previous game "Iris Action"!

A hentai game with turn-based battles and a visual novel where you play as a scientist who arrives at an isolated village called Ravenhollow with the intention of writing your doctoral thesis on anomalous phenomena and mythological creatures. Your goal is to scientifically observe the strange inhabitants of the area: vampires, shapeshifters, werewolf girls, and other entities that seem to come from a dark dream. Upon arrival, you meet a mysterious young woman named Viernes13, who seems to know too much about the village.
Viernes13 tells you about the Heart of Lugrenwald, a forest that no one has crossed and returned sane.
Explore this intriguing story as you meet the village girls, win their hearts through dates and gifts, and have sex with them.