Start game
Start skipping with 
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Chapter Select:
Select 01 (top right branch of left tree), confirm with YES
Note: I wouldn't worry about those chapter selects if you see anything off. By the end of the game, you simply cannot have any "New" marks on those, plus you will most likely end up replying those for CGs.
2) 特別なことは認めるけど...
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1) 惹きつけられてしまうんだと思う
1) 理由を訊ねる
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Select branch with NEW on it(left 01)
1) 雰囲気がいつもと違ったから
1) 緋文のことを説明する
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1) こはくの隣に座る
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Select branch with NEW on it(left 01)
2) 否定はできないかな
1) ご馳走になっていく
1) 内緒にしてあげる
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Select branch with NEW on it(left 01)
1) 追いかけて声をかける
1) 真に迫っていたと思う
2) きっとその判断は間違っていた
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Select branch with NEW on it(left 01)
Create Save 1
1) こはくを手伝いたい
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Press
to switch pages
Select branch with NEW on it(left 01)
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Select branch with NEW on it(left/down 01)
END
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Back in the menu, select 3rd option chapter select
Select branch with NEW on it(left/down 01)
Skip until end
Load Save 1
2) 緋文のことも気にかかる
Press
to switch pages
Middle girl on this page, top 01 with NEW
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Middle girl on this page, lower 01 with NEW
END - now you can skip credits with 
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Back in the menu, select 3rd option whic is chapter select
Select branch with NEW, middle girl bottom left 01
Skip until end
Load Save 1
3) 菜乃にき...
Press L - right girl top 01
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Right girl lower 01
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END
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Chapter select - select new "NEWs" so there is none left, also note that a third page appeared here, so if you press
you will see a page with only one choice in the middle. Skip through that one as well. During this step you will unlock:
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Check trophy count, if you are on 22 select 4th option (EXTRA) in the main menu and here click on
BGM
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Enter CGs:
If trophy won't pop see below:
One or more CGs are random, but don't worry - you will get them in 10-15 minutes. Go to chapter select and replay all chapters (01s) from left to right on the middle page (MEANING: Go the the page in chapter select that has once choice, press
once and you will be on the middle page, where you need to replay stuff, start from left here). After end of each route (where game throws you to main menu) check CGs
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trophy 25 (Plat)
Source: http://seiya-saiga.c...2_vita_ps4.html