Like the other games in this circle, multiple rounds are required to unlock the entire gallery and all of the endings. Unlike the previous molester games, this is easier to get into and master but the multiple rounds to unlock everything are still a chore.
Use the guide mentioned
here for the endings, it's comprehensive enough and players can fill in the gaps if they missed anything out.
A few tips and tricks for those who wondering what this is all about. This will serve as a reminder stored in a public space in case I return to this game with additional DLC. I've unlocked everything bar the DLC-exclusive heroine since I didn't play the previous game and don't care for it enough to install it for one more heroine.
1. If you bought the game legally, download the latest version as it included quality of life improvements like a mini-map, the ability to keep targets undressed after their mental state reaches despair etc. The game is still beatable even on the base version, it just takes longer and requires more effort.
2. Take note of when each target is available. The order is Nursery caretaker > blond high-school student > Nurse > Stewardess > Youtuber high-school student > DLC-exclusive heroine.
3. When each target is introduced, the last extract of text will say which carriage they use and which station they enter from. Once the target's social media account is discovered after pickpocketing their bags, players won't need to memorise the details as the game will do it automatically. The only exception is reportedly the DLC heroine who doesn't use social media.
4. For unlocking the gallery, it helps to use at least two save files when doing a run and to save at specific milestones so that progress isn't completely lost if an ending is accidentally triggered. Through experience, getting each heroine's true end and lewd end is usually enough to unlock all of their scenes in the gallery provided players know what they're doing.
5. To unlock all of the lewd scenes without triggering either ending, players need to progress through the social media chat lines until the penultimate tweet is unlocked (refer to the guide). Once that shows up in the target's account, DON'T reply to her message until all of the lewd scenes are unlocked.
6. There is one exception to the above rule. For the Youtuber high-schooler's true end, the penultimate tweet is MANDATORY to unlock as soon as possible as otherwise she won't progress to her lewd scenes until the story scenes on the train with the troll youtuber have been watched entirely. Her lewd scenes can still be unlocked following point 5 if going for her lewd end first.
7. It pays to work the target's various sensitivities as it saves time in the long run. The stewardess and youtuber only have one weak point to begin with so taking the time to develop back-ups increases available options if players failed to get into the right position in time during the station interval.
8. ALL body parts (even hands which start off as frigid for everyone) can be developed to maximum sensitivity provided players can be bothered to drag out the train parts and trigger the rape scene just before the target disembarks. At maximum sensitivity combined with the relevant activated skills, target sanity can be dropped to zero in a matter of seconds.
9. Money is used for two things: getting a temporary follower boost on social media and as a war chest for bribing the target if caught red-handed. Earning money is simple: the longer the time spent molesting the target and the more extreme the action, the higher the earnings. Even touching their face up to the stop before the target gets off can net income exceeding 100k for the daily tweet. Early on, pay for the temporary follower boost as every little helps when the skill points aren't maxed out yet.
10. Social media followers: the more the merrier. The in-game benefit of having a horde of followers is making the molestation phases easier. There are three categories on the right side of the screen when the target is within range: these translate roughly into "righteous civilians", "plain-clothes law enforcement" and "social media followers". If the count for the first two categories is high, it means lots of lines on the target. Getting caught red-handed by certain lines is an instant fail and players will need to decide how to deal with the ensuing mess. If the followers' count is maxed out at 50, the other categories will be minimised and players will find it ridiculously easy to work the targets even if they aren't backed in a corner.
11. For the 3P ending, it's the nursery caretaker and the youtuber. Simply work the targets as if one was going for their lewd endings in the social media platform. Once the penultimate tweet is unlocked, work the other target. No need to reply to the penultimate tweet; once players get them both lewd and have a minimum count in oral ejaculation the ending will automatically trigger after the day phase (I got mine on April 26th in-game).
I've uploaded my save file for those too lazy to unlock everything themselves and who want something more complete than post #40. Again, I'm not going to bother with the DLC-exclusive heroine. Players who want her scenes will have to unlock it themselves; it's not hard and her endings are dependent on how high her sensitivities are when she's lewd.