This is my first walkthrough on Steam, so it's not optimal in format.
I see there are other guides here, so I will only post 1 route here and link the rest to my blog. Why? Because people keep copying the walkthroughs, post them on their own site, and claim they wrote it themselves. (The exact format, word for word, even with the Japanese text. I can tell they didn't do it themselves, because other walkthrough sites that make their own format and word theirs differently.)

However I will add that some of my options are different from others'.
This one will be for unlocking all content, not just good & bad end.

Please don't copy or claim as your own work.

All walkthroughs: https://otomechuchu.tumblr.com/post/159657314650/nightshade-100-walkthrough

Please don’t copy or claim as your own work! I’m not adding Japanese to this one. Unless people want me to.

– I should make preparations ( 支度を急ごう )
– I’m glad we get to work together ( 一緒に任務をできるのが楽しみ )
- You’re leaving me here? ( 先に行ってしまうのですか？ )
- Goro ( 五郎 )
– Keep quiet ( 言葉を失う )
– Main street ( 大手筋 )
- I’ve never had such good dessert before
- Try to resist ( 抵抗する )
- Bow deeply in silence
- Bukemachi
- All right
- I’m sorry
- But…
Save1

- I’m fine here
- Residental District ( 町屋街 )
- Main Street ( 大手筋 )
- Fushimi Castle, Main gate ( 伏見城　大手門 )
- I don’t think I can play a good wife
- I feel shy
- You’ll make a wonderful husband
- That doesn’t change the fact it hurt
- You’re coming with me
- Having you stroke my head
- I believe we’re destined
- Meet his eyes
- Is it really a painkiller?
GOOD END


LOAD Save1

- Let’s go to the dessert shop
- Residental District
- Main Street
- Fushimi Castle, Main gate
- I don’t think we’d be convincing
- Stop teasing me
- You’ll be a good father
- Don’t force yourself to laugh
- That’s unlike you
- Sleeping in the same room with you
- I’ll be waiting
- Look away
- Is it poison?
BAD END



Open the gallery and click till you find the character. CG achievement will unlock.