The tagcomplete can recognize the words "jirai kei" but doesn´t produce a jirai kei clothes. So I redefine it according to my imagine: Red (pink) and black (deep color) as the main colors, with ribbon, puffy (juliet) sleeves. The comparision:

This LoRA is not necessary, you can use pink shirt, neck ribbon, frills, black skirt, pleated skirt, long sleeves, puffy sleeves, high-waist skirt, (black ribbon), red shirt, black kneehighs to produce a stereotypical one

I ask Google why Jirai Kei is Landmine, it says, translated:

What is landmine type (subculture landmine type)? The term ``landmine-kei/subculture landmine-kei'' refers to women who seem attractive and cute when you first see them, but who seem to have a dark (sick) side when you get involved with them. The origin of this is said to be that there are parts of it that you don't notice unless you are involved with it, and that it is similar to a landmine, where you don't know whether or not it will explode if you step on it.

original:

地雷系（サブカル地雷系）とは？ 「地雷系・サブカル地雷系」とは、初めて見たときに魅力的で可愛らしい印象を受けるが、関わってみると闇（病み）の一面を持つような女性を指す言葉です。 その由来は、関わらないと気づけない部分があり、踏んでしまうと爆発するかどうかわからない地雷と類似しているからといわれています。