The "Eternal memory" achievement is one of the most hardest achievement in the game not only one ending but you need to unlock all 57 endings.(if you got 55 ending the game will still give you this achievement) So this guide is not very detailed(It too hard to make all 57 ending with a lot of detail)
If you have any problem just type down below.
(sorry for my bad english)

"Eternal memory" achievement

Before starting you need to get all of these item down below.It will help you a lot to get all ending.


The memory of 1977 (make you get Top university)


The cap of the fallen (make you get Ordinary university)


The old red armband (make you restudy)


PC Game Quarterly (make you get into Carbage's route)


Secret test paper (plus your chinese, math, and english by 10 points and comprehensive by 15 points)
Item such like "The license of the rich" , "To hell with Gaokao" will make this game easier in some condition.
This guide down below form Desert Dan will make you get all of these item
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=516140470
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=516554678
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=516689830

Good relation with Muxin and Good score in first mock test Ending
Affect event Part
I will show you the event that affect to ending

66DL event
choice :1 it will lead you into ending 1-6 and 13-20
choice :2 it will lead you into ending 21-26

62DL event if you have enough relation with muxin you can make this choice.
choice :1 it will lead you into ending 1-18 (If you picked choice 2 in 66DL event you will get ending 21-26 instead)
choice :2 it will lead you into ending 27-32

50 DL event if you picked choice 1 in 62DL event your will be like this.
choice :1 it will lead you into ending 13-20
choice : 2 it will lead you into ending 1-6 (If you picked choice 2 in 66DL event you will get ending 21-26 instead)

Ending Part

If you followed ending 27-32 you will get this event in 38DL
choice 1 : Top university = END27, Ordinary university = END28 , Restudy = END 29
choice 2 and call muxin every weekend after this : Top university = END30, Ordinary university = END31 , Restudy = END 32
if you need more detail just follow this guide from Desert Dan
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=530123570

If you followed ending 21-26 you will get this event in 28DL
choice 1 : Top university = END21, Ordinary university = END22 , Restudy = END 23
choice 2 : Top university = END24, Ordinary university = END25 , Restudy = END 26


If you picked choice 1 in 50DL event you will get this event in 23DL.
chocie 1 : Top university = END13(one of my favorite ending), Ordinary university = END14 , Restudy = END 15
choice 2 : Top university = END16, Ordinary university = END17 , Restudy = END 18
(if you picked choice 2 and call xiaohan in rainy day (19DL) you will get
Top university = END19, Ordinary university = END20 , Restudy = END 18)


If you followed ending 1-6 you will get this event in 20DL
choice 1 : Top university = END01, Ordinary university = END03 , Restudy = END05
choice 2 : Top university = END02, Ordinary university = END04 , Restudy = END 06
if you need more detail just follow this guide from Desert Dan
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=517417089

In this part i won't guide you a lot because you can follow Desert Dan's guide
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=523694470

Just call xiaohan on 96DL you will get xiaohan's notebook and make Muxin know it.
then just pass your first mock test (more than tier 1 college)
and have enough relationship with Muxin to remain her as friend(62DL).

Don't forget to pick choice 2 in this event (61DL)
If you followed this guide correctly.The ending will depend on this
after 13DL if you call Muxin every weekend you will get : Top university = END07, Ordinary university = END08 , Restudy = END09
If not : Top university = END10, Ordinary university = END11 , Restudy = END12

If you having a score less than tier 1 college but having high ideal you can get Ending 33-36 and 38-43.
Affect event Part

If everything is correct you will get this event on 63DL
choice 1 : it will lead you into Ending 33-36 and 38-40
choice 2 : it will instantly lead you into Ending 41-43 (Equip your item before enter this route)

Ending Part
If you picked choice 1 you will get into berserker route and having this event in 21DL

choice 1 : Top university = END38, Ordinary university = END39 , Restudy = END40
choice 2 : Tsinqhua University (trying to get the most score that you can have/
recommended equip secret test paper) =END33
Top university = END34, Ordinary university = END35 , Restudy = END36

If you having a score less than tier 1 college and having low ideal you can get Ending 44-49
and 53-57(If you equip PC game quarterly)
after quarrel with Muxin you will get into internet cafe route if you didn't equip PC game quarterly)
Internet cafe Normal route

you will get this event in 32DL
choice 1 : it will lead you into Ending 44-46 48-49
choice 2 : you will instantly get END47

If you picked choice 1 in last event you will get this event on 16DL
choice 1 : Top university = END44, Ordinary university = END45 , Restudy = END46
choice 2 : Top university = END48, Ordinary university = END49 , Restudy = END46

Internet cafe Cabbage's route
you need to equip PC game quarterly before 60 DL and you will get into this route.

If you do it correctly you will get this event in 19DL.
choice 1 : Top university = END56, Ordinary university = END56 , Restudy = END57
choice 2 : Top university = END53, Ordinary university = END54 , Restudy = END55
you can follow Desert Dan's guide for more detail
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=516554678

If you didn't get into any route you will get Top university = END50, Ordinary university = END51 , Restudy = END52

Now you will have last ending left.
Ending 37
-having bad score in first mock test.
-having low health after 62DL event(keep your health low after this event).
-after several days you will immediately get car accident and sent you into END37.

I hope this guide will help you a lot.
Thank you Desert Dan for making a lot of guide for everyone.
If you have any question you can type down below.
See ya!